look up any word, like dirty sanchez:
 
4.
Someone who has sex with a donkey

or someone who u think is a complete donkeys dick
God damn ur a donkey boner
by HAHA yo mama April 09, 2008
 
1.
In the letter, Eric Cartman sends to Chriss Hanson he uses the word donkey boner. He uses the word in the episode Le petit Tourette of the southpark series
The letter Eric sends to Chriss:

Dear Mr. Hansen
I have Tourettes and I want the world to understand what its like. wont you do a special resport on ME. So that the world can learn to ACCEPT us instead of laughing at us. Donkey boner!

Eric Cartman
by donkey boner October 12, 2007
 
2.
something that is said inanely and completely randomly by someone who has Tourette's syndrome
As I was talking to my friend with Tourette's he "DONKEYBONER!" said, well yah there it is...
by Bitch107 July 21, 2008
 
3.
The act of a donkey having a boner. donkey-boner
Dude, look at that donkey, its got a donkey-boner!
by Manny Romirez September 02, 2009
 
5.
when the male gets so mother fucking horny his dick gets as long as a donkeys dick
Me-Shell was bangin this fine ass chick when she did some nasty freaky things to him, and then all of a sudden, he got a long ass donkey boner
by leroy vanderville October 23, 2007